Cognomen Sangman (상만 
, Sangman 
) , throughout the world, is a rare last name. The last name Sangman is habitual in Thailand, where it is a rare surname, China, where it is an extremely rare surname, and the United States. More prevalently, Sangman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 상만 | South Korea |
| Sangman | South Korea, India, United States, Thailand, China |